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- Omega-Tip-Z™
- Millivolt and megohm meter measures impedance of metal or glass capillary microelectrodes
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Omega-Tip-Z was created especially for measuring impedance in etched tungsten, platinum-iridium* and steel microelectrodes, as well as electrolyte-filled micropipettes. The meter's AC impedance-measuring circuit is unaffected by electrode offset or tip junction potentials. The gold-plated miniature probe lets you conveniently monitor microelectrode impedance in electrolytes, and an electrode tip cleaning feature lets you remove buildup quickly. Omega-Tip-Z can also measure DC electrode tip potentials up to 2000 millivolts. The instrument operates for hundreds of hours without battery failure. |
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OMEGA-TIP-Z SPECIFICATIONS
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| INPUT RESISTANCE |
1012 Ohms, typical |
| INPUT LEAKAGE CURRENT |
1 pA, typical |
| MAX. INPUT VOLTAGE SWING |
± 2 V |
| VOLTMETER |
Range
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0 to ±2000 mV DC |
Accuracy
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± 0.1% of reading, ± 1 least significant digit |
Resolution
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1 mV (3.5 digits) |
| OHMMETER |
Range
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0 to 20 M Ohms (metal)
0 to 200 M Ohms or 0 to 2000 M Ohms (glass) |
Measurement
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10 nA and 1 nA (500 Hz square wave) |
Resolution
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10 K Ohms |
Accuracy
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± 20% |
| PROBE |
1.2 cm diameter x 3.2 cm long |
| PROBE HANDLE |
4.7 mm diameter x 8.9 cm long |
| PROBE CABLE |
1.5 m |
| MAIN HOUSING |
7 x 4 x 2 in. (18 x 10 x 5 cm) |
| POWER |
6 AA 1.5-volt alkaline cells, supplied |
| SHIPPING WEIGHT |
4 lb (1.8 kg) |
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| Order Numbers |
| OMEGA-Z |
Omega-Tip-Z with Probe & Holder |
| 711P |
Replacement Probe |
| 5468 |
Adapter to connect metal microelectrodes to probe, 2 mm socket to .031 in. receptacle |
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*See metal microelectrodes
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